Question

please answer this...........​

Answer 1

Hey mate ...here's your ans:

• i) Molecular mass of H2= 2 x Atomic mass of H= 2 x 1
• = 2 u

• ii) Molecular mass of O2= 2 x Atomic mass of O
• = 2 x 16
• = 32 u

• iii) Molecular mass of Cl2= 2 x Atomic mass of Cl
• = 2 x 35.5
• = 71 u

• vii) Molecular mass of C2H4= 2 x Atomic mass of C + 4 x Atomic mass of H
• = 2 x 12 + 4 x 1
• = 28 u

• ) Molecular mass of CH4= Atomic mass of C + 4 x Atomic mass of H
• = 12 + 4 x 1
• = 16 u

• viii) Molecular mass of NH3= Atomic mass of N + 3 x Atomic mass of H
• = 14 + 3 x 1
• = 17 u

• ix) Molecular mass of CH3OH= Atomic mass of N + 3 x Atomic mass of H
• = 12+ 4 x 1+16
• = 32 u

Answer 2

Answer:

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